Henry keller



m. BHAQU. Patented Sept. 27, 1398.

H. KELLER.

GAS summon.

(Application 'filed Mar. 19, 1897.)

.NO Model.)

IN V ENT 01? rzvassas m w u W W M H irE ArnNr Prion.

HENRY KELLER, OF NEWV YORK, N. Y., ASSIGNOR OE ONE-HALF TO ALBERT A. MEYER, OF SAME PLACE.

GAS-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 611,490, dated September 27, 1898. Application filed March 19,1897. Serial No. 628,243. (No model.)

clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in gas machines or generators, the object being to provide a generator of simplified construction whereby the gas may be manufactured at a minimum cost.

To this end my invention consists in certain novel constructions, combinations, and arrangements of parts, as will be hereinafter more fully described,and specifically set forth in the appended claims.

In the accompanying drawing the figure is a central vertical sectional view thereof.

Referring to the drawing, the numeral 1 designates a furnace provided with a smokestack 2 for the escape of the products of combustion. The furnace is provided with a grate having hollow grate-bars 3, provided with orifices 4:, and a steam-supply pipe 5,

leading from a suitable source of steam-supply on the exterior, is in connection with the said hollow grate-bars and is adapted to supply steam thereto,which jets or issues through the said orifices and provides a forced draft therefor. Above the grate the furnace is provided with a fuel-feed door 6 and below the same with an ash-door 7 for the removal of the ashes from the ash-pit. A water-supply pipe 8 extends through the wall of the furnace at the ash-pit and is provided with a nozzle 9,arranged to spray jets of water across the lower part of the generator, and a wateroverfiow pipe 10 extends through the ash-pit wall at the other side and is provided with a vent 11.

A retort or generator vessel 12 is inclosed within the. furnace immediately above the grate and is adapted to contain a supply of naphtha or other hydrocarbon oil which is to be treated for the generation of gas. A hydrocarbon-supply pipe 13, leading from the hydrocarbon-tank on the exterior, is provided to supply the retort with hydrocarbon. This retort is covered by a hood or. diaphragm 14;, which divides the furnace into two compartments, said diaphragm being provided with an escape flue or pipe 15, through which the smoke, gas, and products of combustion are adapted to escape. A valve 16 is hinged to an extension 17 of this flue and is adapted to seat within the top of the flue and close the same in order to shut oif the draft from the furnace-chimney. Alever 18 is connected with this valve, and a chain 18 leads from the lever to the exterior of the furnace and provides means for opening and closing the said valve. The said flue 15 is in communication with an exhaust-pipe 19, leading into a waterseal chamber or tank 20, which is adapted to prevent the gas from fiowingback into the generator. The retort-chamber is also provided at its upper end with a discharge-pipe 21, lead ing into a condensing-chamber 21 and this condensing-chamber has a drip-pipe 22 in communication with a residuum-discharge pipe 23, which is provided for removing the waste fromthe retort. This drip-pipe has a controlling-cock 24:. The condenser is also provided with a handhold plate 25 for removal of the waste therein which cannot pass through the drip-pipe. 'The condenser is in communication with the water-seal chamber by means of a discharge-pipe 26, leading therer from. A steam-supply pipe 27, receiving steam from the same source as the steamsupply pipe 5, enters the exhaust-pipe 19 and is provided with a nozzle 28 for discharge of steam thereinto in order to create a draft through the exhaust when the valve controlling the flue-pipe leading from the generator is closed.

The water-seal chamber or compartment 20 is provided with a discharge-pipe 29, adapted to convey the purified gas to the gas holder or reservoir, and a valve 30 is pro vided in the said pipe for controlling the passage of gas therethrough. The hydrocarbonsupply pipe 13 is provided with an oil-gage 31, having an indicator 32 to indicate the amount of oil contained in the generator. The furnace is provided with a peep-sight 34, whereby the grate and fuel thereon may be inspected. A tube or pipe 35, leading from the generator, is also provided in order to ascertain the progress of the gas-generatin g operation, and this pipe has a gas-burner attachment 36 and a drip-chamber 37, provided with a controlling-cock 38.

The operation is as follows: The fire on the grate is first ignited and the retort heated to a light-cherry heat. Then the ash-door and valve 16 are closed and the water and steam spray turned on to cool the bottom of the generator and create a draft through the exhaust flue or pipe. The hydrocarbon contained within the retort at this time is being quickly vaporized by the heat of the retort, and this gaseous vapor passes through the discharge-pipe 21 into the condenser and then to the water-seal compartment, which prevents it from flowing back to the retort.

In case more oil is supplied to the retort than it can quickly gasify the gas generated thereby, impregnated with oil and which is heavier than the ordinary gas, passes into the condensing-chamber, where the oil is condensed and the gas discharged into the waterseal compartment, the condensed oil being afterward returned to the retort by means of a return-pipe connection through the condenser to said retort.

Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is

1. In gas-generators, the combination of a furnace having a central division-wall or diaphragm separating it into two compartments, a flue-opening through said division-wall, a retort below the division-Wall and immediately above the furnace-grate, a hydrocarbonsupply for the retort, a valve controlling the flue-pipe leading from the division-wall, a condenser on the exterior and in communication with the retort, a water-seal chamber having a pipe connection with the condenser, and an exhaust-pipe communicating between the said flue and the water-seal chamber, substantially as and for the purpose described.

2. In a gas-machine, the combination of the furnace provided with a valve-controlled exhaust-passage, a retort contained therein and provided with a hydrocarbon-supply pipe, a

condensing-chamber on the exterior and provided with a discharge for the condensed oil into the retort and in communication with the latter to receive the gas therefrom, and a water-seal chamber in communication with the said condenser and exhaust-pipe, substantially as described.

3. In gas-generators, the combination of a furnace having a central division-Wall or diaphragm separating it into two compartments, a flue rising from said diaphragm and provided with a valve, a retort having position immediately below the division wall and above the furnace-grate, a water-seal chamber, a condensing-chamber having supply and discharge connections with the said retort and a discharge-pipe leading into the said water seal, and an exhaust-pipe in the furnace leading from the said flue to the water-seal chamber, substantially as described.

4. In gas-generators, the combination of a furnace having a central division-wall or diaphragm separating it into two compartments and a smoke-stack above the same, a fine projecting from said division-Wall and arranged in a direct vertical line below the said smokestack, said flue having a valve to prevent the gas from the furnace passing out of said stack, a retort or generator located in the lower chamber of the furnace between the said diaphragm and the grate, a hydrocarbon-supply to said retort, a water-seal chamber, a valvecontrolled discharge-pipe leading therefrom, a condensing-chamber interposed between the said water-seal chamber and the retort and provided with a discharge-pipe leading into said water-seal chamber and having supply and discharge connections with the said retort, and a discharge-pipe leading from the flue in the diaphragm and having its outer end opening into the Water-seal chamber, substantially as and for the purpose described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

, HENRY KELLER.

Witnesses ANDREW BEAM,

RICHARD DOYLE. 

